Journal Paper

• Masahiko Nakase, Ryota Nakazawa, Ria Mishima. Mechanistic Elucidation of Platinum Group Metal Separation by Aluminum Hexacyanoferrate in Nitric Acid Systems, Next Chemical Engineering (accepted), May 2026.
• Masahiko Nakase, Tatsuro Matsumura, Ryo Hamada, Chi Young Han, Go Chiba, Tomofumi Sakuragi, Hidekazu Asano. Strategic selection of nuclear fuel cycle backend options: A framework incorporating MA separation and final disposal by multi-criteria evaluation, Annals of Nuclear Energy, Vol. 233, 112267, Mar. 2026.
• Ryota Nakazawa, Satofumi Maruyama, Ryosuke Maki, Lewis R. Blackburn, Colin Boxall, Masahiko Nakase. Comparison Study on Crystalline Phases in Ce-bearing Titanate SYNROC Synthesized by Conventional and Spark Plasma Sintering, Reviewed proceedings of Waste Management Symposia 2026 (WM2026), Mar. 2026.
• Takumi Abe, Taiga Suzuki, Tomohiro Okamura, Masahiko Nakase. Implementation of ideal cascade model for uranium enrichment to nuclear fuel cycle simulator, Annals of Nuclear Energy, Vol. 232, p. 112224, Feb. 2026.
• Saki Ozawa, Yudai Shiozawa, Yoshitaka Saijo, Tatsuya Miyajima, Daiju Matsumura, Takuya Tsuji, Masahiko Nakase, Terutaka Maehara. Redox Dynamics of Cerium Ions in Soda-Lime Glass during Cooling Analyzed by in situ X-ray Absorption Fine Structure, Journal of the American Ceramic Society, Vol. 109, Issue 3, e70621, Feb. 2026.
• Andika Putra Dwijayanto, Kenji Nishihara, Tomohiro Okamura, Masahiko Nakase. Preliminary Design and Front-end Fuel Cycle Assessment of 200 MWt Marine Molten Chloride Fast Reactor, Annals of Nuclear Energy, Vol. 229, No. 2026, p. 112124, Jan. 2026.

International Conference (Reviewed)

• Ryota Nakazawa, Satofumi Maruyama, Ryosuke Maki, Lewis R. Blackburn, Colin Boxall, Masahiko Nakase. Comparison Study on Crystalline Phases in Ce-bearing Titanate SYNROC Synthesized by Conventional and Spark Plasma Sintering, Waste Management Symposia 2026 (WM2026), Mar. 2026.

International Conference (Not reviewed / Unknown)

• Kenji Nishihara, KENJI TAKESHITA, Takashi Shimada, Naoto Aizawa, Masahiko Nakase, Satoshi Wada, Shingo Wakasaki, Minefumi Matsui, Yoshiaki Yasunaga, Tomohiro Okamura, Takumi Abe, Manabu Yoshida, Hiroaki Nagano, Yoshio Kimura, Ayako Ono, Masatoshi Yamazaki, Masayuki Naganuma, Sou Watanabe, Tomoko Murakami, Tadafumi Koyama, Daisuke Watanabe, Sho Fuchita, Yuji Fukaya, Masako De Franco, Hiroshi SAGARA, Yoichiro Shimazu, Liem Peng Hong, Koji Fujikura. Benchmark Activity in Atomic Energy Society of Japan for Improvement of Reliability of Nuclear Fuel Cycle Simulators, TWoFCS2026 (The 7th Technical Workshop on Fuel Cycle Simulation 2026), Apr. 2026.  Official location  
• Tomohiro Okamura, Koki Ono, Taiga Suzuki, Takumi Abe, Takahiro Nishihara, Masahiko Nakase, Kenji Nishihara. NMB4 Validation Based on Historical Nuclear Power Plant Operating Records in Japan, TWoFCS2026 (The 7th Technical Workshop on Fuel Cycle Simulation 2026), Apr. 2026.  Official location  
• Andika Putra Dwijayanto, Kenji Nishihara, Tomohiro Okamura, Masahiko Nakase. Fuel Cycle Simulation for Marine Molten Chloride Fast Reactor: Verification and Case Study, TWoFCS2026 (The 7th Technical Workshop on Fuel Cycle Simulation 2026), Apr. 2026.  Official location  
• Subrata Saha, Andika Putra Dwijayanto, Alessio Rossi, Masahiko Nakase. VVER-1200 Reactor Modeling and Nuclear Fuel Cycle Simulation for the Bangladesh Nuclear Energy Scenario Using NMB 4.0, TWoFCS2026 (The 7th Technical Workshop on Fuel Cycle Simulation 2026), Apr. 2026.  Official location  
• Taiga Mitsuyuki, Tomohiro Okamura, Masahiko Nakase, Shinnosuke Wanaka. Strategic Roadmapping and Implementation Pathways for Nuclear-Powered Ships toward 2050 Net-Zero Shipping, TWoFCS2026 (The 7th Technical Workshop on Fuel Cycle Simulation 2026), Apr. 2026.  Official location  
• Masahiko Nakase, Charlotte Orgonasi, Tomohiro Okamura, Kenji Nishihara. Enhancing Economic Evaluation Frameworks for MOX Fuel Cycles through Machine Learning-Based Reactivity Prediction, TWoFCS2026 (The 7th Technical Workshop on Fuel Cycle Simulation 2026), Apr. 2026.  Official location  
• Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Kenji Nishihara. Towards a World Model of the Nuclear Fuel Cycle (1) From Past Reconstruction to Future Assessment of Fuel Demand, Waste Treatment and Strategic Stability, TWoFCS2026 (The 7th Technical Workshop on Fuel Cycle Simulation 2026), Apr. 2026.  Official location  

Domestic Conference (Not reviewed / Unknown)

• Takahiro Nishihara, Tomohiro Okamura, Hidekazu Asano, Masahiko Nakase. TASKI:AIを基盤とした原子力ナレッジマネジメントシステム(5)非構造データのナレッジベース化, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Ahid Nurmanjaya, Qiushi Wang, Taisuke Tsukamoto, Takashi Shimada, Tomoo Yamamura, Masahiko Nakase. Investigation on fuel cycle based on actinide management towards sustainable use of nuclear energy(17) Investigation of elemental separation behavior using novel fluorinated solvents and short-chain extractants, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Taisuke Tsukamoto, Tasuku Orino, Keisuke Nishimura, Yuki Konishi, Hiroki Tsukamoto, Takashi Shimada, Masahiko Nakase, Yasutoshi Ban, Yasuhiro Tsubata, Tomoo Yamamura. 持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(20)二次廃棄物量低減に向けたMA暫定保管体への直接転換技術の開発, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Kenji Nishihara, Kouki Ono. A World Model of the Nuclear Fuel Cycle From Past Reconstruction to Future Assessment of Fuel Demand, Waste Treatment and Strategic Stability, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Ayoob Ilyas, Masahiko Nakase, Andika Putra Dwijayanto, Alessio Rossi, Hide Okada, Chris Allison, Zheng Fu, Shuying Jiang. Neutronic Design of a Compact Heat-Pipe Microreactor with Preliminary Thermal Evaluation for Lunar Application, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Andika Putra Dwijayanto, Tomohiro Okamura, Masahiko Nakase. Online or Offline? Evaluating the Refuelling Options for Marine Molten Chloride Fast Reactor, The 19th Student Research Presentation on AESJ Kanto-Koetsu Office, Mar. 2026.
• Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Kenji Nishihara, Kouki ONO. Towards the World-Wide Modelling of the Nuclear Fuel Cycle, The 19th Student Research Presentation on AESJ Kanto-Koetsu Office, Mar. 2026.
• Ahid Nurmanjaya, Qiushi Wang, Taisuke Tsukamoto, Takashi Shimada, Tomoo Yamamura, Masahiko Nakase. Extraction behavior of Short-Chain Ligands for f-Block Elements in Novel Fluorinated Diluents, The 19th Student Research Presentation on AESJ Kanto-Koetsu Office, Mar. 2026.
• Qiushi Wang, Ahid Nurmanjaya, Masahiko Nakase. "Structure–Extraction Relationship of Aromatic-Substituted TDGA Derivatives for Pd(II) in Nitric Acid Media", The 19th Student Research Presentation on AESJ Kanto-Koetsu Office, Mar. 2026.
• Masahiko Nakase. AI-Enabled Digital Twins for Nuclear Science and Engineering Studies, The 10th, Year 2025 ZC Colloquium, Workshop of faculties of MIT and Laboratory for Zero-Carbon Energy, Mar. 2026.
• Andika Putra Dwijayanto, Kenji Nishihara, Tomohiro Okamura, Masahiko Nakase. The Case for Pu-fuelled Molten Chloride Fast Reactor for Nuclear Marine Propulsion, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Ayoob Ilyas, Masahiko Nakase, Andika Putra Dwijayanto, Alessio Rossi, Hidetoshi Okada, Chris Allison, Zheng Fu, Shuying Jiang. Conceptual Design of a Compact Heat Pipe Device for Lunar Surface Power Generation, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Tomohiro Okamura, Masahiko Nakase, Takashi Shimada, Hiroki Tsukamoto, Yuki Konishi, Keisuke Nishimura, Tomoo Yamamura. 持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(22)高速炉実証炉の諸量評価研究, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Takashi Shimada, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Keisuke Nishimura, Yuki Konishi, Hiroki Tsukamoto, Koki Hibi, Hiroyuki Moriwaki, Tomoo Yamamura. 持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(23)軽水炉サイクルの課題解決の視点からの高速炉サイクルの要件１, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Qiushi Wang, Ahid Nurmanjaya, Masahiko Nakase. Aryl-Substituent Effects in Thiodiglycolamide Ligands: Alkyl Chain Length Modification for Enhanced Palladium(II) Extraction, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Joonho LEE, Takahiro Nishihara, Masahiko Nakase. Extractant Exploration for Actinide Separation Solubility-Performance Hybrid Evaluation for ML Based Extractant Reverse Design, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Kenji Nishihara, Kouki ONO. Towards a World Model of the Nuclear Fuel CycleFrom Past Reconstruction to Future Assessment of Fuel Demand, Waste Treatment and Strategic Stability, Atomic Energy Society of Japan 2026 Spring Annual Meeting, Mar. 2026.
• Tomohiro Okamura, Masahiko Nakase. 事例紹介1, Tokyo University of Science Education Innovation Center Symposium 2026, Feb. 2026.
• Masahiko Nakase. [招待講演] 核燃料サイクルと資源循環：核種分離がもたらす原子力の新しい価値と未来－廃棄物処分負荷低減と資源有効利用に向けて－, Kanto Branch Research Presentation Meeting of the Japan Society of Material Cycles and Waste Management, Feb. 2026.
• Takashi Shimada, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Yuki Konishi, Keisuke Nishimura, Hiroki Tsukamoto, Tomoo Yamamura. アクチノイドマネジメントを備えた燃料サイクルの研究(1)MA分離・暫定保管の有効性評価, 19th Seminar of the Reprocessing and Recycle Technology Division on AESJ, Jan. 2026.

Research Highlight

• Masahiko Nakase, Packwood Daniel. Organizer, Group Discussion 4: "How to be both flexible and deep with your research?" in Japan Society for the Promotion of Science 17th HOPE Meeting with Nobel Laureates (International Conference organized by JSPS). 2026-2026.
• Masahiko Nakase, Tomohiro Okamura, Kenji Takeshita, Kenji Nishihara, Takumi Abe. Organizer of the 7th Technical Workshop on Fuel Cycle Simulation 2026 TWoFCS2026 & NuMBAC2026. 2026-2026.

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